Total Bridges
27,040
Public highway bridges in California
State profile · Below national median SD
California bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in California — drawn straight from the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
- 4.6%
- Structurally deficient
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges rated 0-4
Structurally Deficient
4.6%
1,244 bridges flagged for repair priority
-2.4pp vs national avg 7.0%
California vs national bridge condition
California — Good condition share 32.5%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
California — Structurally deficient share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix - California (FHWA NBI)
Counties (58)
Alameda 800 Alpine 32 Amador 62 Butte 441 Calaveras 106 Colusa 211 Contra Costa 686 Del Norte 96 El Dorado 196 Fresno 929 Glenn 242 Humboldt 398 Imperial 448 Inyo 67 Kern 686 Kings 168 Lake 129 Lassen 108 Los Angeles 3937 Madera 250 Marin 217 Mariposa 109 Mendocino 357 Merced 532 Modoc 87 Mono 49 Monterey 390 Napa 160 Nevada 135 Orange 1224 Placer 347 Plumas 170 Riverside 1142 Sacramento 775 San Benito 76 San Bernardino 1465 San Diego 1707 San Francisco 170 San Joaquin 666 San Luis Obispo 408 San Mateo 393 Santa Barbara 429 Santa Clara 1041 Santa Cruz 203 Shasta 500 Sierra 65 Siskiyou 423 Solano 383 Sonoma 613 Stanislaus 390 Sutter 120 Tehama 452 Trinity 194 Tulare 599 Tuolumne 128 Ventura 511 Yolo 282 Yuba 136
California vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below California on the same metric.
39
Ohio
4.54% top marginal rate
34
New Jersey
4.59% top marginal rate
06
California
4.60% top marginal rate
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by composite NBI rating. Each is inspected at least every 24 months.
SPRING CREEK RD
PoorOver: FALL RIVER
0.5 MI N OF MCARTHUR RD, Shasta, CA
Built 1950 Load: 2.7 t ADT: 50
ORESTIMBA ROAD
PoorOver: CCID MAIN CANAL
0.1 MI E DRAPER RD, Stanislaus, CA
Built 1919 Load: 2.9 t ADT: 684
CLARK STREET
PoorOver: M.I.D. CANAL
0.1 MI WEST OF ROAD 26.0, Madera, CA
Built 1955 Load: 3.2 t ADT: 200
GULLING STREET
Structurally DeficientOver: MIDDLE FORK FEATHER RIV
0.2 MI S SH 70, Plumas, CA
Built 1954 Load: 3.2 t ADT: 10,046
AVENUE 10
PoorOver: COTTONWOOD CREEK
JUST E/O ROAD 23, Madera, CA
Built 1950 Load: 3.6 t ADT: 50
S BISHOP AVE
PoorOver: CRESCENT DITCH
0.64 MI S/O MT WHITNEY AV, Fresno, CA
Built 1950 Load: 3.9 t ADT: 125
All Bridges in California
FOOTHILL-S280 ONRP
FairOver: UP RR
04-SCL-280-11.47-LATS, Santa Clara, CA
Built 1967 Load: 39.2 t ADT: 3,800
INTERSTATE 5 NB
FairOver: UP RR & AMTRAK
02-SIS-005-R15.94, Siskiyou, CA
Built 1973 Load: 39.2 t ADT: 12,750
LEWIS ROAD
FairOver: NEW ALAMO CREEK CHANNEL
0.5 MI SOUTH OF FRY RD, Solano, CA
Built 1966 Load: 39.2 t ADT: 554
WESTSIDE RD
FairOver: NORTON SLOUGH
W OF SR 101 AT HEALDSBRG, Sonoma, CA
Built 1960 Load: 39.2 t ADT: 6,100
MILL CREEK RD
FairOver: MILL CREEK
5.6 MI W WESTSIDE RD, Sonoma, CA
Built 1960 Load: 39.2 t ADT: 210
KING RIDGE RD
FairOver: BIG AUSTIN CREEK
2.3 MI N FORT ROSS RD, Sonoma, CA
Built 1965 Load: 39.2 t ADT: 200
STATE ROUTE 33
FairOver: VENTURA AVE (NORTH)
07-VEN-033-R5.30, Ventura, CA
Built 1970 Load: 39.2 t ADT: 12,000
STATE ROUTE 99 NB
FairOver: LITTLE CHICO CREEK
03-BUT-099-R32.20-CHC, Butte, CA
Built 1965 Load: 39.5 t ADT: 24,750
FIFTH ST (OLD 99W)
FairOver: ROSINA DRAW
9.9 MI N OF YOLO CO LINE, Colusa, CA
Built 1951 Load: 39.5 t ADT: 6,687
MAXWELL-SITES RD
FairOver: GLENN-COLUSA CANAL
0.8 MI W/O MCDERMOTT ROAD, Colusa, CA
Built 1968 Load: 39.5 t ADT: 613
SILVER FORK RD
FairOver: SOUTH FK AMERICAN RIVER
0.1 MI SE OF US 50, El Dorado, CA
Built 1953 Load: 39.5 t ADT: 285
STATE ROUTE 211
FairOver: OLD RIVER
01-HUM-211-R76.30, Humboldt, CA
Built 1964 Load: 39.5 t ADT: 5,300
ELK HILLS ROAD
FairOver: BUENA VISTA CREEK
2.3 MI N OF SO. HO 119, Kern, CA
Built 1952 Load: 39.5 t ADT: 1,150
INTERSTATE 405
FairOver: SAN GABRIEL RIVER
07-LA-405-0.03-LBCH, Los Angeles, CA
Built 1964 Load: 39.5 t ADT: 255,000
WESTERN AVE
FairOver: STANDARD AV,LACMT,RD
0.3MI NE/O I-5 FWY, Los Angeles, CA
Built 1967 Load: 39.5 t ADT: 30,672
TIERRA SUBIDA AVE
FairOver: CALIFORNIA AQUEDUCT
0.5MI S/O AVE S, Los Angeles, CA
Built 1968 Load: 39.5 t ADT: 1,996
96TH ST E
FairOver: CALIFORNIA AQUEDUCT
0.1MI N/O SR-138 HWY, Los Angeles, CA
Built 1968 Load: 39.5 t ADT: 918
SENTOUS ST
FairOver: SAN JOSE CRK
0.2MI S/O VALLEY BLVD, Los Angeles, CA
Built 1968 Load: 39.5 t ADT: 1,173
LYNWOOD RD
FairOver: ACTA
30FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 39.5 t ADT: 2,061
STATE ROUTE 152 EB
FairOver: EASTSIDE BYPASS CHANNEL
10-MER-152-R39.29, Merced, CA
Built 1969 Load: 39.5 t ADT: 8,425
ADMIRALTY DRIVE
FairOver: QUEEN ELIZABETH PASSAGE
0.1 MI NE/O PAC COAST HWY, Orange, CA
Built 1963 Load: 39.5 t ADT: 2,000
INTERSTATE 10 EB
FairOver: SHANTY DITCH
08-RIV-010-R97.33, Riverside, CA
Built 1967 Load: 39.5 t ADT: 23,000
INTERSTATE 15 NB
FairOver: FLAT DITCH
08-SBD-015-R101.48, San Bernardino, CA
Built 1963 Load: 39.5 t ADT: 28,000
INTERSTATE 40
FairOver: FOX WASH OVERFLOW
08-SBD-040-R140.00-NED, San Bernardino, CA
Built 1967 Load: 39.5 t ADT: 16,700
INTERSTATE 40 WB
FairOver: LAVA DITCH
08-SBD-040-R31.42, San Bernardino, CA
Built 1967 Load: 39.5 t ADT: 9,800
INTERSTATE 40 EB
FairOver: LAVA DITCH
08-SBD-040-R31.42, San Bernardino, CA
Built 1967 Load: 39.5 t ADT: 9,800
INTERSTATE 40 EB
FairOver: BNSF RY & AMTRAK
08-SBD-040-R135.88, San Bernardino, CA
Built 1971 Load: 39.5 t ADT: 8,750
99 FRONTAGE RD W
FairOver: PIXLEY SLOUGH
0.6 MI S ARMSTRONG RD, San Joaquin, CA
Built 1964 Load: 39.5 t ADT: 3,498
TASMAN DRIVE
FairOver: BARBER LANE
0.2 KM WEST OF I-880, Santa Clara, CA
Built 1996 Load: 39.5 t ADT: 15,500
E CYPRESS AVE
FairOver: A.C.I.D. CANAL
0.2 MI W OF ATHENS AVE, Shasta, CA
Built 1948 Load: 39.5 t ADT: 46,000
OASIS ROAD
FairOver: CHURN CREEK
0.2 MI WEST OF I-5, Shasta, CA
Built 1969 Load: 39.5 t ADT: 5,060
YOAKIM BRIDGE RD
FairOver: DRY CREEK
0.3 MI SW DRY CREEK ROAD, Sonoma, CA
Built 1956 Load: 39.5 t ADT: 800
STATE ROUTE 99
FairOver: PACKWOOD CREEK
06-TUL-099-34.92, Tulare, CA
Built 1923 Load: 39.5 t ADT: 52,000
D 116B
FairOver: SOUTH BRANCH TULE RIVER
0.45 MI N OF AVE 164, Tulare, CA
Built 1962 Load: 39.5 t ADT: 350
N LIVERMORE AVE
FairOver: ARROYO LAS POSITAS
375 FT SOUTH OF I-580, Alameda, CA
Built 1972 Load: 39.9 t ADT: 25,000
MAXSON ROAD
FairOver: WATTS CREEK TRIBUTARY
0.3 MI E WATT VALLEY RD, Fresno, CA
Built 1967 Load: 39.9 t ADT: 100
INTERSTATE 5 SB
FairOver: GRAPEVINE ROAD
06-KER-005-8.47L, Kern, CA
Built 1960 Load: 39.9 t ADT: 24,375
SEPULVEDA BLVD
FairOver: DOMINGUEZ CHAN
0.5MI E/O ALAMEDA ST, Los Angeles, CA
Built 1959 Load: 39.9 t ADT: 18,900
OLD TOPANGA CYN RD
FairOver: OLD TOPANGA CRK
300FT S/O TOPANGA SKY DR, Los Angeles, CA
Built 1927 Load: 39.9 t ADT: 2,300
SAN FRNDO MISON BL
FairOver: BULL CREEK
0.1 MI W WOODLEY AVE, Los Angeles, CA
Built 1962 Load: 39.9 t ADT: 15,500
LAKE LINDERO DR S
FairOver: LAKE LINDERO CRK
1.0MI E/O LINDERO CYN RD, Los Angeles, CA
Built 1965 Load: 39.9 t ADT: 2,142
LAKE LINDERO DR N
FairOver: LAKE LINDERO CRK
1.0MI E/O LINDERO CN RD, Los Angeles, CA
Built 1965 Load: 39.9 t ADT: 2,142
GRAND AVE
FairOver: SPRR
0.5MI S/O VALLEY BLVD, Los Angeles, CA
Built 1991 Load: 39.9 t ADT: 19,323
METRO CMMERCIAL DW
FairOver: ACTA
0.2MI N/O NADEAU ST, Los Angeles, CA
Built 2000 Load: 39.9 t ADT: 505
NADEAU ST
FairOver: ACTA
40FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 39.9 t ADT: 15,014
92ND ST
FairOver: ACTA
50FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 39.9 t ADT: 11,400
TWEEDY BLVD
FairOver: ACTA
50FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 39.9 t ADT: 15,758
MOUNT SHASTA DR
FairOver: MILLER CREEK
0.08 MI N LUCAS VALLEY RD, Marin, CA
Built 1962 Load: 39.9 t ADT: 500
STATE ROUTE 140
FairOver: BEAR CREEK
10-MPA-140-34.08, Mariposa, CA
Built 1926 Load: 39.9 t ADT: 2,125
WINTON WAY
FairOver: LIVINGSTON CANAL
1.67 MI N OF SR 99, Merced, CA
Built 1950 Load: 39.9 t ADT: 14,695
Showing 15,801-15,850 of 27,040 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.